The first test case is taken from [1]} and has a
one-dimensional parameter space \(\mathcal {P}:= [0,5]\) . The coefficient \(A_\mu \)  is visualized in mp1:pics, and we set \(f \equiv 1\) .
For the sake of brevity, we refer to [1]} for an exact definition of \(A_\mu \) .
In order to resolve the microstructure of the problem,
we choose \(n_h = 2^{8}\)  which results in \(65,536\)  fine-scale elements. The approximated maximum contrast of \(A_\mu \)  is \(\kappa \approx 13\) .
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